Solve the problemA recent advertisement claimed that 2 out of every 3 doctors recommend a certain herbal supplement to increase energy levels. If a local hospital employs 140 doctors, how many doctors would you expect to recommend the supplement? (Round to the nearest whole number, if necessary.)
A. 47 doctors
B. 93 doctors
C. 210 doctors
D. 840 doctors
Answer: B
Mathematics
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Find the vertex, focus, and directrix of the parabola with the given equation.x2 - 8x - 4y + 32 = 0
A. vertex: (4, 4) focus: (5, 4) directrix: x = 3 B. vertex: (4, 4) focus: (3, 4) directrix: x = 5 C. vertex: (4, 4) focus: (4, 3) directrix: y = 5 D. vertex: (4, 4) focus: (4, 5) directrix: y = 3
Mathematics
Evaluate the function.Find f(3, 3) when f(x, y) = 5x + 7y - 4.
A. 36 B. 25 C. 32 D. 27
Mathematics
Solve and check the linear equation.-2x - 5 + 7(x + 1) = 6x + 6
A. 
B. 
C. 
D. 
Mathematics
Solve the equation.-3.4 = 14 - x
A. x = 10.1 B. x = 10.6 C. x = 17.4 D. x = 16.9
Mathematics